Weld 3.0.0.Alpha15

2016-2-4   release , cdi2   Martin Kouba

Weld 3.0.0.Alpha15 the next experimental Weld version has been released. See also the release details.

The CompletionStage used to bind actions to the completion of the asynchronous delivery is now using org.jboss.weld.manager.api.ExecutorServices SPI as the default asynchronous execution facility. Previously, the ForkJoinPool#commonPool() (a default executor of the underlying CompletableFuture) was used. It’s an important change because the ForkJoinPool#commonPool() is not a good fit for Java EE. See also WELD-2073.

The ExperimentalAfterBeanDiscovery receives two more methods: interceptorBuilder() and addInterceptor(). An interceptor builder allows you to create an interceptor bean without the need to create an interceptor class. This might be handy for simple use cases:

class MyExtension {
  void afterBeanDiscovery(@Observes AfterBeanDiscovery event) {
    event.addInterceptor().intercept(InterceptionType.AROUND_INVOKE, (c) -> {
            long start = System.currentTimeMillis();
            try {
                return c.proceed();
            } finally {
                System.out.println("Time: " + System.currentTimeMillis() - start);

See also WELD-2008.

This release also contains some enhancements and bugfixes around proxies. E.g. better support for DeltaSpike partial beans (WELD-2084), better support for Camel CDI (WELD-2089) and better support for proxies with non public classes (WELD-2091). Furthermore, we are going to drop Jetty 7,8, 9.0, 9.1 and 9.2 support in Weld 3 (WELD-2032). Also the decorator validation was improved (WELD-2085, WELD-1811, WELD-2039). Last but not least, we have performed some SPI cleanup (WELD-2077, WELD-2079).

WildFly Patch

As usual, a patch for WildFly is available. This patch not only upgrades Weld within an existing WildFly instance but also upgrades CDI API to 2.0 EDR1. This time the target platform is WildFly 10.0.0.Final. If you’re not familiar with patching WildFly, check Markus’s tutorial.